<template>
  <div class="base-mask">
    <div class="container">
      <el-container class="hv100">
        <el-header class="padding0 header no-select" height="50px">
          <span>群公告({{ items.length }})</span>
          <i class="close-btn el-icon-close" @click="$emit('close')"></i>
        </el-header>
        <el-main class="main padding0">
          <template v-if="loadStatus == 0">
            <div class="loading">
              <div class="ant-spin ant-spin-lg ant-spin-spinning">
                <span class="ant-spin-dot ant-spin-dot-spin">
                  <i class="ant-spin-dot-item"></i>
                  <i class="ant-spin-dot-item"></i>
                  <i class="ant-spin-dot-item"></i>
                  <i class="ant-spin-dot-item"></i>
                </span>
              </div>
              <p>正在努力加载中 ...</p>
            </div>
          </template>
          <template v-if="loadStatus == 1 && items.length == 0">
            <div class="loading">
              <svg-not-data class="svg-icon" />
              <p>暂无群公告</p>
            </div>
          </template>
          <template v-if="loadStatus == 2">
            <div class="loading">
              <i
                class="el-icon-warning"
                style="font-size: 50px; color: #ff5151"
              ></i>
              <p>
                加载失败，
                <a @click="loadNotices" class="pointer">点击重试</a>...
              </p>
            </div>
          </template>
          <template v-else>
            <el-scrollbar :native="false" tag="section" class="hv100">
              <div
                v-for="(item, index) in items"
                :key="item.id"
                class="notice-item"
              >
                <div class="title">
                  <span class="left-title" v-text="item.title"></span>
                  <span
                    class="right-tools no-select"
                    @click="catNoticeDetail(index)"
                    >{{ item.isShow ? "收起" : "展开" }}</span
                  >
                </div>
                <p class="datetime">
                  <el-avatar :size="15" :src="item.avatar">
                    <img src="~@/assets/image/detault-avatar.jpg" alt="" />
                  </el-avatar>
                  <span
                    class="text nickname"
                    v-text="item.nickname"
                    @click="$refs.userBusinessCard.open(item.user_id)"
                  ></span>
                  <span class="text">发表于 {{ item.created_at }}</span>
                </p>
                <p
                  class="content"
                  :class="{ retract: !item.isShow }"
                  v-text="item.content"
                ></p>
              </div>
            </el-scrollbar>
          </template>
        </el-main>
      </el-container>
    </div>
  </div>
</template>
<script>
import { ServeGetGroupNotices } from "@/api/group";
import { SvgNotData } from "@/core/icons";

export default {
  name: "group-notice",
  props: {
    groupId: {
      type: [String, Number],
      default: null,
    },
  },
  components: {
    SvgNotData,
  },
  data() {
    return {
      // 公告列表
      items: [],
      loadStatus: 0,
    };
  },
  created() {
    this.loadNotices();
  },
  methods: {
    // 加载群组公告列表
    loadNotices() {
      this.loadStatus = 0;
      ServeGetGroupNotices({
        group_id: this.groupId,
      })
        .then((res) => {
          if (res.code == 200) {
            this.items = res.data.map((item) => {
              item.isShow = false;
              return item;
            });

            this.loadStatus = 1;
          } else {
            this.loadStatus = 2;
          }
        })
        .catch((err) => {
          this.loadStatus = 2;
        });
    },
    // 展开/收起群公告详情
    catNoticeDetail(index) {
      this.items[index].isShow = !this.items[index].isShow;
    },
  },
};
</script>
<style lang="less" scoped>
.base-mask {
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 650px;
  height: 550px;
  border-radius: 3px;
  overflow: hidden;
  background-color: white;

  .header {
    height: 50px;
    line-height: 50px;
    position: relative;
    text-indent: 15px;
    border-bottom: 1px solid #f5eeee;

    i {
      position: absolute;
      right: 20px;
      top: 15px;
      font-size: 20px;
      cursor: pointer;
    }
  }

  .main {
    overflow: hidden;

    .loading {
      width: 100%;
      height: 70%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 12px;

      p {
        margin-top: 20px;
      }

      .svg-icon {
        width: 80px;
        margin-bottom: 10px;
      }
    }

    .notice-item {
      cursor: pointer;
      min-height: 76px;
      overflow: hidden;
      border-bottom: 1px dashed #e2dcdc;
      padding-bottom: 5px;
      margin: 2px 20px 15px 15px;

      h6 {
        font-size: 15px;
        font-weight: 300;
      }

      .title {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        height: 30px;

        .left-title {
          flex: 1 1;
          height: 100%;
          line-height: 30px;
          font-size: 14px;
        }

        .right-tools {
          flex-basis: 70px;
          flex-shrink: 0;
          height: 100%;
          line-height: 30px;
          text-align: right;
          font-weight: 300;
          font-size: 12px;
          color: #2196f3;
        }
      }

      .datetime {
        font-size: 10px;
        color: #a59696;
        font-weight: 300;
        display: flex;
        flex-direction: row;
        align-items: center;
        margin: 10px 0;

        .text {
          margin: 0 5px;
        }

        .nickname {
          color: #2196f3;
          font-weight: 400;
        }
      }

      .retract {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .content {
        font-size: 12px;
        line-height: 28px;
        font-weight: 500;
        color: #7d7a7a;
      }
    }
  }
}

/deep/.el-scrollbar__wrap {
  overflow-x: hidden;
}
</style>
